Ball cap



FIG. 1 is a rear perspective view of the ball cap in accordance with my invention;

FIG. 2 is a rear elevation view thereof;

FIG. 3 if a front elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a left side elevation view thereof.

The broken lines shown in the drawings illustrate portions of the ball cap that form no part of the claimed design. 

CLAIM The ornamental design for a ball cap, as shown and described. 